TY  - RPRT
TI  - Using the citation index to assess performance.
AU  - J S Tsafrir
AU  - T Reis
PY  - 1990
DO  - 10.1136/bmj.301.6764.1333-c
UR  - https://pubmed.ncbi.nlm.nih.gov/2091645/
ID  - 2091645
ER  -